Respiration Worksheet - PC\|MAC
Cellular Respiration Study Guide NAME:___________________________Date:_________
1. What are the 3 phases of the cellular respiration process?
2. Where in the cell does the glycolysis part of cellular respiration occur?
3. Where in the cell does the Krebs (Citric Acid) cycle part of cellular respiration occur?
4. Where in the cell does the electron transport part of cellular respiration occur?
5. How many ATP (net) are made in the glycolysis part of cellular respiration?
6. How many ATP are made in the Kreb’s cycle part of cellular respiration?
7. How many ATP are made in the electron transport part of cellular respiration?
8. In which phase of cellular respiration is carbon dioxide made?
9. In which phase of cellular respiration is water made?
10. In which phase of cellular respiration is oxygen a substrate?
11. In which phase of cellular respiration is glucose a substrate?
12. On average, how many ATP can be made from each NADH during the electron transport process?
13. On average, how many ATP can be made from each FADH2 during the electron transport process?
14. What would happen to the cellular respiration process if the enzyme for one step of the process were missing or defective?
15. What happens to the high-energy electrons (and hydrogen) held by NADH if there is no O2 present?
16. Explain why this happens.
17. What is the overall reaction for fermentation in yeast?
18. What is the overall reaction for lactic acid fermentation?
19. Only a small part of the energy released from the glucose molecule during glycolysis is stored in ATP. How is the rest of the energy released? (HINT: It is a product in the overall reaction for cellular respiration.)
20. Write the complete overall chemical equation for cellular respiration using chemical symbols instead of words:
____________ + _______________ →_______________+_________________+________________
21. Compare this reaction to the one used for PHOTOSYNTHSIS:
(6 H2O + 6 CO2 + light energy → C6H12O6 + 6 O2) How are these equations related?
__________________________________________________________________________________
22. MATCH THE LETTER IN THE DIAGRAM WITH THE LABEL:
(You can use them MORE THAN ONCE or NOT AT ALL)
______ Place where glycolysis happens
______ Place where enzymes for the Electron
Transport Chain are located
______ Place that fills with H+ ions as electrons move down the Electron transport chain
______ Place where ADP and P join to make ATP
______ Place where oxygen acts as the final electron
acceptor to make water
CELLULAR RESPIRATION VOCABULARY REVIEW
1. __ __ __ __ __ __ __ __ __ __ is a 6 carbon molecule that is produced first when acetyl-CoA joins with a 4 carbon molecule to enter the Krebs cycle.
2. __ __ __ __ __ __ __ __ __ __ is the process of splitting a glucose molecule into 2 pyruvic acid molecules.
3. The molecule used by cells to store and transfer energy is __ __ __.
4. Glycolysis happens outside the mitochondria in the __ __ __ __ __ __ __ __ __ of the cell.
5. __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ happens when oxygen is present and includes glycolysis, Krebs cycle, and Electron transport.
6. This describes a process that requires oxygen = __ __ __ __ __ __ __
7. This atmospheric gas is required for aerobic respiration = __ __ __ __ __ __.
8. This describes a process that does NOT require oxygen; it means “without air”
a. = __ __ __ __ __ __ __ __ __
9. Type of fermentation used by human muscles in low oxygen conditions and microorganisms to make yogurt, cheese, pickles, sauerkraut and kimchi. = __ __ __ __ __ __ __ __ __ __
10. The __ __ __ __ __ cycle breaks down pyruvic acid into carbon dioxide and produces NADH, FADH2, and ATP.
11. The NADH and FADH2 produced during the Krebs cycle pass their electrons down the
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ chain to produce ATP.
12. The passage of H+ ions through __ __ __ __ __ __ __ __ __ __ __ causes it to spin and produce ATP.
13. This 3 carbon molecule is produced during glycolysis when glucose splits in half
a. = __ __ __ __ __ __ __ __ __ __ __
14. Cell organelle which acts as the cell’s power plant to burn glucose and store energy as ATP
a. = __ __ __ __ __ __ __ __ __ __ __ __
15. If oxygen is NOT present, glycolysis is followed by __ __ __ __ __ __ __ __ __ __ __ __.
16. Type of fermentation used to make bread dough rise and produce beer and wine.
a. = __ __ __ __ __ __ __ __ __
17. This molecule has the formula C6H12O6 and is split in half during glycolysis
= __ __ __ __ __ __ __
18. The carbon atoms in pyruvic acid end up as __ __ __ in the atmosphere following the Krebs cycle.
19. The folded inner membranes inside a mitochondrion are called __ __ __ __ __ __ __.
20. This molecule reacts with pyruvic acid to release C02, produce NADH, and acetyl-CoA.
a. = __ __ __ __ __ __ __ __ __
21. __ __ __ __ __ __ __ __ __ forms when Coenzyme A attaches to two carbons from pyruvic acid.
22. __ __ __ __ __ __ __ __ is the storage form of glucose used by animal cells which can be broken down for energy when glucose is used up.
23. The area inside the cristae where the Krebs cycle happens is the __ __ __ __ __ __.
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